Tomisato is a city located in Chiba Prefecture, Japan. As of 1 November 2020, the city had an estimated population of 49,914 in 23,753 house…Tomisato is a city located in Chiba Prefecture, Japan. As of 1 November 2020, the city had an estimated population of 49,914 in 23,753 households and a population density of 930 persons per km. The total area of the city is 53.91 square kilometres.